Function dump_node 

pub fn dump_node(
    code: &[u8],
    node: &Node<'_>,
    depth: i32,
    line_start: Option<usize>,
    line_end: Option<usize>,
) -> Result<()>

Dumps the AST of a code.

Returns a Result value, when an error occurs.

Errors

Propagates any std::io::Error produced by the color-aware writer that backs stdout (broken pipe, write failure, …).

Examples

use big_code_analysis::{dump_node, Ast, LANG, Source};

let source = b"int a = 42;";
let ast = Ast::parse(Source::new(LANG::Cpp, source))
    .expect("cpp feature enabled");
let root = ast.root_node();

// Dump the AST from the first line of code in a file to the last one
dump_node(ast.source(), &root, -1, None, None).unwrap();

Panics

Panics if code is not the exact source node was parsed from. node’s byte range is used to slice code, so a node taken from a different (or smaller) tree indexes out of bounds. Always pair a node with the source it came from — e.g. ast.source() and a node obtained from the same crate::Ast (ast.root_node() or a descendant).